MIL-DTL-917 Electric Power Equipment, Basic Requirements ForThis specification covers the basic requirements applicable to the design, materials, and construction of naval shipboard electric power equipment \(exclusive of communication equipment, information technology \(IT\) equipment, and combat systems [fire control and weapons control equipment]\). Unless otherwise specified herein, the electric equipment developed for shipboard use under the requirements of this specification are limited to a maximum 450 volt \(V\) alternating current \(AC\) and a maximum 1,000 V direct current \(DC\). This equipment is intended for use on surface and submarine naval vessels \(see 6.2\).

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MIL-DTL-917F(SH)

PARAGRAPH

PAGE

3.13.8.2.1 Isolation of outputs .................................................................................................................... 54

3.13.8.3 Frequency meters .............................................................................................................................. 54

3.13.9 Indicator lights ......................................................................................................................................... 54

3.13.9.1 Preferred indicator lights .................................................................................................................. 54

3.13.9.2 Alternative indicator lights for standard and non-standard voltages and frequencies and

DC circuits ....................................................................................................................................................... 54

3.13.9.3 Lamp types ....................................................................................................................................... 54

3.13.9.4 Indicator lenses, mounting, and color ............................................................................................... 54

3.13.10 Jacks, tip (test point jacks) ..................................................................................................................... 54

3.13.11 Motors.................................................................................................................................................... 55

3.13.12 Servo-motors ......................................................................................................................................... 55

3.13.13 Synchros ................................................................................................................................................ 55

3.13.14 Relays .................................................................................................................................................... 55

3.13.15 Terminal boards ..................................................................................................................................... 55

3.13.16 Terminal lugs ......................................................................................................................................... 55

3.13.16.1 Insulated types ................................................................................................................................ 55

3.13.16.2 Uninsulated types............................................................................................................................ 55

3.13.16.3 Lower current applications ............................................................................................................. 55

3.13.16.4 Higher current applications............................................................................................................. 55

3.13.16.5 Plated terminal lugs ........................................................................................................................ 56

3.13.17 Electron tubes ........................................................................................................................................ 56

3.13.18 Semiconductor devices (other than semiconductor integrated circuits (SIC), see 3.13.20) ................... 56

3.13.18.1 Approval and data on non-standard semiconductor devices ........................................................... 56

3.13.18.2 Electrostatic discharge (ESD) susceptible items............................................................................. 56

3.13.19 Spike voltage suppressors ...................................................................................................................... 56

3.13.20 Microcircuits.......................................................................................................................................... 56

3.13.21 Filters ..................................................................................................................................................... 56

3.13.22 Contactors, motor starters, and controllers ............................................................................................ 56

3.13.23 Transducers............................................................................................................................................ 56

3.13.23.1 Differential pressure ....................................................................................................................... 56

3.13.23.2 Pressure........................................................................................................................................... 56

3.13.23.3 Temperature .................................................................................................................................... 56

3.13.23.4 Thermistors ..................................................................................................................................... 56

3.13.23.5 Liquid level ..................................................................................................................................... 56

3.13.24 Transformers and inductors ................................................................................................................... 56

3.13.25 Connectors, plug and receptacle types ................................................................................................... 57

3.13.25.1 Electrical connectors....................................................................................................................... 57

3.13.25.2 Shield grounding ferrules................................................................................................................ 57

3.13.25.3 General utility connectors ............................................................................................................... 57

3.13.26 Printed wiring assemblies ...................................................................................................................... 57

3.13.27 Non-repairable assemblies ..................................................................................................................... 58

3.13.27.1 Non-repairable assemblies with printed wiring .............................................................................. 58

3.13.28 Springs ................................................................................................................................................... 58

3.13.29 Magnetic brakes..................................................................................................................................... 58

3.14 Processes......................................................................................................................................................... 58

3.14.1 Treatment and processing of metals for corrosion resistance .................................................................. 58

3.14.1.1 Interior surfaces of motors and generators........................................................................................ 60

3.14.2 Painting .................................................................................................................................................... 60

3.14.2.1 Parts to be painted............................................................................................................................. 60

3.14.2.2 Parts not to be painted....................................................................................................................... 61

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